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<div class="title">Release 2.3.0 (2020/02/27) </div>  </div>
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<div class="textblock"><p>Cpp-Taskflow 2.3.0 is the 4th release in the 2.x line! This release includes several new changes such as conditional tasking, modified scheduling flows, benchmarks, documentation, and so forth.</p>
<h1><a class="anchor" id="release-2-3-0_download"></a>
Download</h1>
<p>Cpp-Taskflow 2.3.0 can be downloaded from <a href="https://github.com/cpp-taskflow/cpp-taskflow/releases/tag/v2.3.0">here</a>.</p>
<h1><a class="anchor" id="release-2-3-0_new_features"></a>
New Features</h1>
<ul>
<li>Added full C++14/17/20 support </li>
<li>Added a thread-safe object pool motivated by Hoard memory allocator </li>
<li>Added condition tasks in support for conditional tasking (see <a class="el" href="chapter4.html">C4: Conditional Tasking</a>) </li>
<li>Added <a class="el" href="classtf_1_1Task.html#afc4ecb89dd4e4645b3ec3fb7c1bb0ec5" title="queries if the task has a work assigned ">tf::Task::has_work</a> to detect if a task is a placeholder </li>
<li>Added <a class="el" href="classtf_1_1Task.html#aff13a503d4a3c994eb08cb6f22e1b427" title="applies an visitor callable to each successor of the task ">tf::Task::for_each_successor</a>, <a class="el" href="classtf_1_1Task.html#a3bf68937662bf291637e4a763476b2e4" title="applies an visitor callable to each dependents of the task ">tf::Task::for_each_dependent</a>, and <a class="el" href="classtf_1_1Taskflow.html#a6350d0d6653ae9ae7b94c35e42fffe07" title="applies an visitor callable to each task in the taskflow ">tf::Taskflow::for_each_task</a>, <a class="el" href="classtf_1_1TaskView.html#a3cb647dc0064b5d11e0c87226c47f8f8" title="applies an visitor callable to each successor of the task ">tf::TaskView::for_each_successor</a>, <a class="el" href="classtf_1_1TaskView.html#a55651e26436bfc2499cadaca4a24e48d" title="applies an visitor callable to each dependents of the task ">tf::TaskView::for_each_dependent</a> to support graph traversal </li>
<li>Modified the task scheduling flow </li>
<li>Modified tf::Taskflow::parallel_for to take a chunk size instead of a partition number </li>
<li>Modified <a class="el" href="classtf_1_1Executor.html" title="execution interface for running a taskflow graph ">tf::Executor</a> to be thread-safe (see <a class="el" href="chapter2.html">C2: Executor</a>) </li>
<li>Enhanced the performance of work stealing </li>
<li>Enhanced unit tests</li>
</ul>
<h1><a class="anchor" id="release-2-3-0_bug_fixes"></a>
Bug Fixes</h1>
<ul>
<li>Fixed the stack overflow problem in zero worker execution </li>
<li>Fixed the missing comma in output execution timelines from an executor </li>
<li>Fixed the bug in empty taskflow</li>
</ul>
<h1><a class="anchor" id="release-2-3-0_deprecated_items"></a>
Deprecated Items</h1>
<ul>
<li>Removed zero worker thread support in execution </li>
<li>Removed gather method in task handle </li>
<li>Removed <a class="elRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a> and <a class="elRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/utility/initializer_list.html">std::initializer_list</a> support in task's preceed/succeed methods </li>
<li>Removed taskflow::silent_emplace method </li>
</ul>
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